The first season of Beverly Hills, 90210, an American teen drama television series aired from October 4, 1990, on Fox and concluded on May 9, 1991, after 22 episodes.

The series follows twins Brandon and Brenda Walsh during their sophomore year in high school as they deal with everyday teenage issues such as rumors, peer pressure, shoplifting, sex, affirmative action, dysfunctional families, cancer scares, learning disabilities, rape, alcohol abuse, and AIDS.

Minnesota natives Brandon and Brenda Walsh begin attending West Beverly Hills High, and experience culture shock when they become exposed to the glamour, wealth, and privilege that their new classmates possess.

Brenda uses a fake ID to get into a nightclub and passes herself off as a college student when she begins dating a young lawyer.

As they continue to spend time together, Brandon learns that Dylan's bad-boy act masks a hidden life that few people ever see.

Steve's mother convinces him to talk to David after mistakenly thinking that his father is a wealthy TV show producer.

Meanwhile, Brandon gets a job at a trendy restaurant where his boss treats him horribly and pays the minority employees less than minimum wage.

Brenda develops a crush on her algebra teacher and is disappointed to find out that he has a wife and children that she has agreed to babysit.

Meanwhile, Brenda decides to take driver’s education again, but fails twice and ends up losing Brandon’s car when trying to pick Kelly up from a bad date.

An unreasonable history teacher makes his students' lives miserable by using an infamous steep grading curve and when Brandon learns that Steve gets A's by stealing exams before the test, he decides to follow suit.

David uses his video camera in order to sneak a peek at Kelly in the fashion show dressing room.

Following their disappointing seventeenth wedding anniversary, Cindy feels like the intimacy is lost between her and Jim and engages in an emotional affair with her old college boyfriend who has moved to town, scaring Brenda into thinking her parents are headed for divorce.

She volunteers for a teen crisis hotline and violates the rules when she takes an after-hours call from a date-rape victim, who is still in danger.

Meanwhile, the gang begins Sex Education in Health Class and Scott has trouble getting his mother to sign the consent form.

Brandon gets an unexpected taste of fatherhood when he starts dating a scholarly senior with Ivy League ambition named Melissa and then has to baby-sit her infant son while she has a college interview.

Back in Beverly Hills, Brandon meets a young boy at the Peach Pit and discovers the reason he hangs around at the restaurant all day.

The West Beverly juniors are panicked by the upcoming SATs, but then everything gets put into perspective when Brenda finds a lump in her breast and faces a test no one can prepare for.